erythrocyte sedimentation rate (ESR), the rate at which red blood cells settle out in a tube of unclotted blood, expressed in millimeters per hour. Blood is collected in an anticoagulant and allowed to form a sediment in a calibrated glass column.
The Butterfly Circus (2009) The Butterfly Circus is the story of a renowned circus troupe traveling through the devastated American landscape at the height of the Great Depression, lifting the spirits of audiences ... See full summary Â».
Here are the most spectacular butterfly facts for kids including butterfly habitat, diet, and reproduction. Fundamentally speaking, a butterfly is a day-flying insect belongs to the Lepidoptera order.There are four parts of the butterflyâs lifecycle namely; egg, larva, pupa and adult. Nearly all species are diurnal.utterfly Migration. Most species are known to cover great distances. One of the most well-known species is called Monarch butterfly from Mexico to Southern Canada and northern America, a distance of about 4,000 â 4,800 km (2,500 â 3,000 miles).